2.3 Earthquake Hazards and Safety

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Vocabulary

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liquefaction: the process of which moist soil becomes mud because of the severe shaking of an earthquake.
aftershock: a smaller earthquake that follows a big earthquake in the same area.
tsunamis: the waves created by an underwater earthquake.
base-isolated building: a building that is designed to lower the power of an earthquake as it reaches the building.

Outline

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Earthquake 1995

• In Kobe,Japan
  • 5,000 people died

Earthquake damage

• seismic waves cause severe damage
• S waves damage near epicenter

Liquefaction

• when earthquake turn loose
  • happen where soil wet
• liquefaction make landslide

Aftershocks

• earthquake after earthquake
  • same area
  • smaller than before

Tsunamis

• earthquake make
• big waves
  • height low
    • half meter

Diagram

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